This book revolves around "My grandpa is the great god Pangu" as the core, and tells a journey of inheritance and protection that spans the three realms and spans the universe. The twelve-year-old mother encounters a strange "grandfather" figure on the way to prepare for the war, and this begins the secret process of her bloodline being tempered by Pangu's divine consciousness. Many years later, a vision came from the sky when "I" was born, confirming that I had become the true inheritor of Pangu's bloodline. As I grew up, "I" gradually awakened to my divine power. Under the guidance of my mother, I explored the inheritance clues left by my grandfather. I met Lin Qingxue, who has spiritual veins, Qin Feng, the Immortal World Patrolman, and other partners, and embarked on a journey to fulfill the duty of patrolling the sky and protect the order of the three realms. On the way, "I" uncovered the hidden truth, faced the joint obstruction of the conservatives in the fairy world and the forces of the Chaos Demon God, and completely awakened the power of opening the sky. In the end, "I" led the Three Realms Alliance to kill the Demon Lord of Nothingness at the ruins of Pangu Kaitian, re-sealed the Chaos Demon God and the Void Rift, and stabilized the order of the Three Realms. However, under peace, the crisis came again. The Star-Eating Civilization deep in the universe launched a large-scale invasion to plunder the original energy of Pangu in the core of the mother star (Earth). In the end, "I" led the expedition to outer space to decisively fight against the Star-Eating Civilization, reached a peace agreement with energy sharing, and promoted reconciliation among all races on the home star. After the war, "I" formed the Universe Survey Alliance, extending Pangu's guardian spirit from the Three Realms to the broader universe, and embarked on a new journey to protect the order of the universe.